Nail.



No. 767,521. PATENTBD AUG. 16, 1904.

E. Ps. HURD.

NAIL.

APPLIUA'IION FILED FEB. 27,' 1900.

.NO MODEL.

UNTTED STATES Patented August 16, 1904.

PATENT EErcE.

EDXYARD P. HURD, OF BOSTON, MASSACHUSETTS. ASSIGNOR TO UNTTED SHOE MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A COR- POR-ATION OF NEW JERSEY.

NAIL.l

SPECIFICATION forming part of Letters Patent No. 767,521, dated August 16, 1904.

Application filed February 27, 1900. Serial No. 6.672. (No model.)

To @ZZ whom it may concern:

Beit known that I, EDWARD P. HURD, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Nails, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing' like parts.

This invention relates to the production of a novel nail especially adapted for attaching the heels of boots and shoes.

The nail to be herein described, the subject of my invention, has a pointed body and near one end a collar, above which is an upper portion having' an entering end preferably of less area than that of the collar. Said upper portion is cut away all around, to thereby provide a recess above the collar and between it and the topend of said upper portion, which recess extends entirely around said upper portion. Said upper portion thus presents at its top end an overhanging lip, which extends entirely around its top. The material of the top lift as the latter is spanked onto the said upper portion expands into the continuous recess and holds the top lift securely in position.

Figure 1 shows in section part of a shoe and a heel attached thereto by nails embodying' my invention, one only of said nails being shown. Fig'. 2 is an enlarged side elevation of one of my novel nails. Fig. 3 is a view of the nail shown in Fig. 2 looking' at it from the left. Fig. 4 is a top or head end view of the nail shown in Fig. 2. Fig. is a section of the head in the dotted line 5 5, Fig. 2. Figs. 6 and 7 are different views of a nail having a modified shaped head. Figs. 8 and 9 are respectively a head end view and section thereof in the line 9 9,'Fig. 6. Figs. 10 and 11 and Figs. 12 and 13 are respectively plan views and sections of other modified forms of nails. Fig. 11L is a partial side elevation of the head end of the top-lift-holding' portion of the nail shown in Figs. 10 and 11. Fig. 13 in elevation shows part of a nail having the shape represented in Figs. 12 and 13.

My novel nail is composed of a body a, a suitable point c, (preferably one which will clench readily in the inner sole of the shoe,) a collar b, and an upper portion L, located at that side of the collar I) opposite that from which the body of the nail is extended.

The nail will have preferably a strengthening-swell Z between the body and the under side of the collar.

Referring to Figs. l to 5, inclusive, the end of the upper portion is flat and is represented as substantially quadrilateral in shape, as best illustrated in Fig. 4, it presenting, consequently, four faces or sides, the opposed longer faces 2 and the shorter faces 3, and, as illustrated in Figs. 2 and 3, all of the said side faces are concaved, to thereby provide a recess which extends entirely about said upper portion between its top end and the collar, the upper side of each concaved side face tapering outwardly and intersecting or merging' into the flat top end of the nail, thus leaving a continuous overhanging lip 6 in the plane of the end of said upper portion. The lower sides of all the concaved faces, which lower sides go to form the lower side of the wall of the recess, also taper outwardly and merge into the collar, thus forming' an annular strengthening member which serves to back up the collar during the driving of the nail.

The most common use for the nail is illustrated in Fig. 1, where the nail is shown as driven through the heel f, the end of the nail passing through the outer sole Gr and thro ugh a part of the upper L, the point c of lthe nail being clenched in any usual manner in the inner sole g.

Vith a heel united as described to the shoe by means of a series of nails a a top lift e will be spanked upon the upper portions /L projecting beyond the body of the heel. As the top lift is spanked upon the nails a the leather is cut by the top ends of the upper portions and is forced upon said upper portions until the under side of the top lift meets the heel, and the leather into which the upper portion is entered contracts and enters the continuous recess formed by the concaved side faces 2 3 (see Figs. Q', 3, and and gets under the continuous lip 6 of the upper end of said recess, the leather entering said continuous recess and hugging the nail snugly between the collar and the top end of the upper portion.

By providing the upper portion with a continuous recess extending entirely about the upper portion I am enabled to provide the maximum holding power for a nail of this sort, and such a nail will hold the top lift securely in place.

Figs. 6 to 9 show a nail having an upper portion the shape of which is modified from that represented in Figs. 1 to In the modification Figs. 6 to 9 the top t of the upper portion presents side faces of substantially the same length, thus presenting an upper portion which is square in cross-section. Each of the side faces of this quadrilateral projection, there being four such faces, is cut away or concaved between the collar and the top end of the upper portion to leave a concave recess`9, which is continuous about the said upper portion, the formation of such a continuous recess leaving at the extremity of the holding portion an overhanging lip 9X, which is represented in Figs. 6 and 7.

In the modification Figs. 10, 11, and 11u the upper portion (represented by the letter L!) is triangular in cross-section and the three side faces thereof are concaved to form the continuous concave recess, as at 10, leaving at the extremity of said holding portion an overhanging lip 12, which extends entirely about the top end of the upper portion and overlaps the space formed by the continuous recess 10.

In the modilication Figs. 12, 13, and 13lthe upper portion therein (designated ha) is ellip tical, and said upper portion is provided with a continuous recess 13, extending entirely around it, (see Fig. 13,) leaving above said recess an overhanging lip 14.

In all the modifications herein represented a cross-section in a line substantially as represented by 5 5, Fig. 2, of the upper portion will present an area of metal of smaller diameter than the collar, so that the said upper portion has the general shape of two similar opposed truncated pyramidal bodies, having the trun- `cated portions thereof meeting midway between the collar and the end of the upper portion.

The body and shank of the nail in all of the modiiieations herein described are the same, and I have employed the letter Z) to represent the collar in all the ligures.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. A nail having a body, a collar, and an upper portion above said collar having a flat upper end, said upper portion having a concave recess which extends entirely around the upper portion and is of a width equal to the major part of the length of the upper portion, the deepest portion of said recess being midway between the collar and the plane of the upper end of said nail.

2. A nail having a body, a collar, and an upper portion above said collar, said upper portion having a concave recess extending entirely around the same, the lower part of the wall of said recess tapering outwardly and merging into the collar to form a backing for the collar, and the upper part of said wall also tapering outwardly and merging into the upper end of the nail to form a continuous overhanlging lip which extends entirely around the nai In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD P. HURD.

Iitnessesz HARRY I. SADLER, NELSON WV. HOWARD. 

